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<a href="dev__io__i2c_8c.html">浏览该文件的文档.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno">    1</span> </div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno">   23</span><span class="preprocessor">#include &quot;<a class="code" href="dev__io__i2c_8h.html">dev_io_i2c.h</a>&quot;</span></div>
<div class="line"><a id="l00024" name="l00024"></a><span class="lineno">   24</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno">   25</span><span class="comment">/*******************************************************************************************************************************************</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno">   26</span><span class="comment"> * Private Define</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno">   27</span><span class="comment"> *******************************************************************************************************************************************/</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno">   28</span><span class="comment">/* IO 模拟 I2C 软件实现 */</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno">   29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno">   30</span><span class="preprocessor">#include &quot;<a class="code" href="dev__touch_8h.html">dev_touch.h</a>&quot;</span> <span class="comment">/* 目前仅用于 TP 触摸端口 */</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a6dc9935cfe8b7dc43a460cebc17eb21d">   31</a></span><span class="preprocessor">#define IO_I2C_GPIO_SDA         TP_GPIO_SDA</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a31489a7cb45fbeca95611ec3cf1b7840">   32</a></span><span class="preprocessor">#define IO_I2C_PIN_SDA          TP_PIN_SDA</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno">   33</span> </div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#abb391ccbf9ba2ae3a7d1988842623a8e">   34</a></span><span class="preprocessor">#define IO_I2C_GPIO_SCL         TP_GPIO_SCL</span></div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a28fb2162693faeed9d0eb9a8ff505ae2">   35</a></span><span class="preprocessor">#define IO_I2C_PIN_SCL          TP_PIN_SCL</span></div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno">   36</span> </div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno">   37</span><span class="comment">/* IO 操作宏 */</span></div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno">   38</span><span class="preprocessor">#if 1</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span><span class="preprocessor">    #include &quot;<a class="code" href="dev__io_8h.html">dev_io.h</a>&quot;</span></div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span><span class="preprocessor">#else </span></div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</span><span class="preprocessor">    #define IO_DIR_I(GPIOx, PINx)           ( ( (GPIOx)-&gt;DIR ) &amp;= ~( 0x01 &lt;&lt; (PINx) ) )</span></div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno">   44</span><span class="preprocessor">    #define IO_DIR_O(GPIOx, PINx)           ( ( (GPIOx)-&gt;DIR ) |= ( 0x01 &lt;&lt; (PINx) ) )</span></div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno">   45</span> </div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno">   47</span><span class="preprocessor">    #define IO_GET(GPIOx, PINx)             ( ( ( (GPIOx)-&gt;IDR ) &gt;&gt; (PINx) ) &amp; 0x01 )</span></div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno">   48</span> </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno">   50</span><span class="preprocessor">    #define IO_SET_L(GPIOx, PINx)           ( *( ( &amp;( (GPIOx)-&gt;DATAPIN0 ) ) + (PINx) ) = 0 )</span></div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno">   52</span><span class="preprocessor">    #define IO_SET_H(GPIOx, PINx)           ( *( ( &amp;( (GPIOx)-&gt;DATAPIN0 ) ) + (PINx) ) = 1 )</span></div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno">   53</span><span class="preprocessor">#endif</span></div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno">   54</span> </div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a47b137463bffebf7af6bd74278d8f8c3">   55</a></span><span class="preprocessor">#define IO_I2C_SDA_L()          IO_SET_L(IO_I2C_GPIO_SDA, IO_I2C_PIN_SDA)</span></div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a4aebdb53d1294c3008175592f73fc586">   56</a></span><span class="preprocessor">#define IO_I2C_SDA_H()          IO_SET_H(IO_I2C_GPIO_SDA, IO_I2C_PIN_SDA)</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno">   57</span> </div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a89365b46eef744394b5047c523748664">   58</a></span><span class="preprocessor">#define IO_I2C_SCL_L()          IO_SET_L(IO_I2C_GPIO_SCL, IO_I2C_PIN_SCL)</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a48fb4a6a453531b45b0fe78f0649e2d3">   59</a></span><span class="preprocessor">#define IO_I2C_SCL_H()          IO_SET_H(IO_I2C_GPIO_SCL, IO_I2C_PIN_SCL)</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno">   60</span> </div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#abdf5284b11e20fc99af45603c3d9fd8b">   61</a></span><span class="preprocessor">#define IO_I2C_SDA_DIR_I()      IO_DIR_I(IO_I2C_GPIO_SDA, IO_I2C_PIN_SDA)</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#aeccdf57dce6943953940758638ef7355">   62</a></span><span class="preprocessor">#define IO_I2C_SDA_DIR_O()      IO_DIR_O(IO_I2C_GPIO_SDA, IO_I2C_PIN_SDA)</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno">   63</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a01c3892c16d6330e486637967ab0289b">   65</a></span><span class="preprocessor">#define MAX_RETRY               (3)</span></div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno">   66</span> </div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno">   67</span><span class="comment">/*******************************************************************************************************************************************</span></div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno">   68</span><span class="comment"> * Private Prototype</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno">   69</span><span class="comment"> *******************************************************************************************************************************************/</span></div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno">   76</span><span class="keyword">static</span> uint8_t <a class="code hl_function" href="dev__io__i2c_8c.html#abb9c2429dbe2c1095dc3ec66a0b79a11">io_i2c_start_signal</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno">   77</span> </div>
<div class="line"><a id="l00081" name="l00081"></a><span class="lineno">   81</span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="dev__io__i2c_8c.html#a2f2fd2dc0cabe8d5843a078348d9920f">io_i2c_stop_signal</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno">   82</span> </div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno">   89</span><span class="keyword">static</span> uint8_t <a class="code hl_function" href="dev__io__i2c_8c.html#a507c871d4232488d9f36c335cea78bad">io_i2c_wait_ack</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno">   90</span> </div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno">   97</span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="dev__io__i2c_8c.html#a95625ec003f9bd0e827493aa2465f483">io_i2c_send_ack</a>(uint8_t ack);</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno">   98</span> </div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno">  104</span><span class="keyword">static</span> uint8_t <a class="code hl_function" href="dev__io__i2c_8c.html#ab7222883cb247799343ee48f43c677af">io_i2c_recv_byte</a>(<span class="keywordtype">void</span>);</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno">  105</span> </div>
<div class="line"><a id="l00111" name="l00111"></a><span class="lineno">  111</span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="dev__io__i2c_8c.html#a268a94eb25b4c8a9d88a83259930b2df">io_i2c_send_byte</a>(uint8_t data);</div>
<div class="line"><a id="l00112" name="l00112"></a><span class="lineno">  112</span> </div>
<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">  117</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a id="l00118" name="l00118"></a><span class="lineno">  118</span>{</div>
<div class="line"><a id="l00119" name="l00119"></a><span class="lineno">  119</span>    <span class="keywordflow">for</span> (uint32_t i = 0; i &lt; CyclesPerUs; ++i) __NOP();</div>
<div class="line"><a id="l00120" name="l00120"></a><span class="lineno">  120</span>}</div>
<div class="line"><a id="l00121" name="l00121"></a><span class="lineno">  121</span> </div>
<div class="line"><a id="l00122" name="l00122"></a><span class="lineno">  122</span><span class="comment">/*******************************************************************************************************************************************</span></div>
<div class="line"><a id="l00123" name="l00123"></a><span class="lineno">  123</span><span class="comment"> * Public Function</span></div>
<div class="line"><a id="l00124" name="l00124"></a><span class="lineno">  124</span><span class="comment"> *******************************************************************************************************************************************/</span></div>
<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#af312bd95bfab5d6c323eb36deea573cf">  132</a></span>uint8_t <a class="code hl_function" href="dev__io__i2c_8c.html#af312bd95bfab5d6c323eb36deea573cf">io_i2c_start</a>(uint8_t addr, uint8_t wait)</div>
<div class="line"><a id="l00133" name="l00133"></a><span class="lineno">  133</span>{</div>
<div class="line"><a id="l00134" name="l00134"></a><span class="lineno">  134</span>    <span class="keywordflow">for</span> (uint8_t i = 0; i &lt; <a class="code hl_define" href="dev__io__i2c_8c.html#a01c3892c16d6330e486637967ab0289b">MAX_RETRY</a>; ++i)</div>
<div class="line"><a id="l00135" name="l00135"></a><span class="lineno">  135</span>    {</div>
<div class="line"><a id="l00136" name="l00136"></a><span class="lineno">  136</span>        <span class="keywordflow">if</span> (<a class="code hl_function" href="dev__io__i2c_8c.html#abb9c2429dbe2c1095dc3ec66a0b79a11">io_i2c_start_signal</a>())</div>
<div class="line"><a id="l00137" name="l00137"></a><span class="lineno">  137</span>        {</div>
<div class="line"><a id="l00138" name="l00138"></a><span class="lineno">  138</span>            <a class="code hl_function" href="dev__io__i2c_8c.html#a268a94eb25b4c8a9d88a83259930b2df">io_i2c_send_byte</a>(addr);</div>
<div class="line"><a id="l00139" name="l00139"></a><span class="lineno">  139</span>            <span class="keywordflow">if</span> (<a class="code hl_function" href="dev__io__i2c_8c.html#a507c871d4232488d9f36c335cea78bad">io_i2c_wait_ack</a>())</div>
<div class="line"><a id="l00140" name="l00140"></a><span class="lineno">  140</span>                <span class="keywordflow">return</span> 1;</div>
<div class="line"><a id="l00141" name="l00141"></a><span class="lineno">  141</span>        }</div>
<div class="line"><a id="l00142" name="l00142"></a><span class="lineno">  142</span>        <a class="code hl_function" href="dev__io__i2c_8c.html#a2f2fd2dc0cabe8d5843a078348d9920f">io_i2c_stop_signal</a>();</div>
<div class="line"><a id="l00143" name="l00143"></a><span class="lineno">  143</span>    }</div>
<div class="line"><a id="l00144" name="l00144"></a><span class="lineno">  144</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00145" name="l00145"></a><span class="lineno">  145</span>}</div>
<div class="line"><a id="l00146" name="l00146"></a><span class="lineno">  146</span> </div>
<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a18a19719c37d180525d3ad812408c62a">  153</a></span>uint8_t <a class="code hl_function" href="dev__io__i2c_8c.html#a18a19719c37d180525d3ad812408c62a">io_i2c_read</a>(uint8_t ack, uint8_t wait)</div>
<div class="line"><a id="l00154" name="l00154"></a><span class="lineno">  154</span>{</div>
<div class="line"><a id="l00155" name="l00155"></a><span class="lineno">  155</span>    uint8_t data = 0;</div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>    data = <a class="code hl_function" href="dev__io__i2c_8c.html#ab7222883cb247799343ee48f43c677af">io_i2c_recv_byte</a>();</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#a95625ec003f9bd0e827493aa2465f483">io_i2c_send_ack</a>(ack);</div>
<div class="line"><a id="l00158" name="l00158"></a><span class="lineno">  158</span>    <span class="keywordflow">return</span> data;</div>
<div class="line"><a id="l00159" name="l00159"></a><span class="lineno">  159</span>}</div>
<div class="line"><a id="l00160" name="l00160"></a><span class="lineno">  160</span> </div>
<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a4d0792f91f99fe78d977675f315b8b99">  168</a></span>uint8_t <a class="code hl_function" href="dev__io__i2c_8c.html#a4d0792f91f99fe78d977675f315b8b99">io_i2c_write</a>(uint8_t data, uint8_t wait)</div>
<div class="line"><a id="l00169" name="l00169"></a><span class="lineno">  169</span>{</div>
<div class="line"><a id="l00170" name="l00170"></a><span class="lineno">  170</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#a268a94eb25b4c8a9d88a83259930b2df">io_i2c_send_byte</a>(data);</div>
<div class="line"><a id="l00171" name="l00171"></a><span class="lineno">  171</span>    <span class="keywordflow">return</span> <a class="code hl_function" href="dev__io__i2c_8c.html#a507c871d4232488d9f36c335cea78bad">io_i2c_wait_ack</a>();</div>
<div class="line"><a id="l00172" name="l00172"></a><span class="lineno">  172</span>}</div>
<div class="line"><a id="l00173" name="l00173"></a><span class="lineno">  173</span> </div>
<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#addb2a5d40257d803646950da9167bccb">  179</a></span><span class="keywordtype">void</span> <a class="code hl_function" href="dev__io__i2c_8c.html#addb2a5d40257d803646950da9167bccb">io_i2c_stop</a>(uint8_t wait)</div>
<div class="line"><a id="l00180" name="l00180"></a><span class="lineno">  180</span>{</div>
<div class="line"><a id="l00181" name="l00181"></a><span class="lineno">  181</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#a2f2fd2dc0cabe8d5843a078348d9920f">io_i2c_stop_signal</a>();</div>
<div class="line"><a id="l00182" name="l00182"></a><span class="lineno">  182</span>}</div>
<div class="line"><a id="l00183" name="l00183"></a><span class="lineno">  183</span> </div>
<div class="line"><a id="l00184" name="l00184"></a><span class="lineno">  184</span><span class="comment">/*******************************************************************************************************************************************</span></div>
<div class="line"><a id="l00185" name="l00185"></a><span class="lineno">  185</span><span class="comment"> * Private Function</span></div>
<div class="line"><a id="l00186" name="l00186"></a><span class="lineno">  186</span><span class="comment"> *******************************************************************************************************************************************/</span></div>
<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#abb9c2429dbe2c1095dc3ec66a0b79a11">  193</a></span><span class="keyword">static</span> uint8_t <a class="code hl_function" href="dev__io__i2c_8c.html#abb9c2429dbe2c1095dc3ec66a0b79a11">io_i2c_start_signal</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a id="l00194" name="l00194"></a><span class="lineno">  194</span>{</div>
<div class="line"><a id="l00195" name="l00195"></a><span class="lineno">  195</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#abdf5284b11e20fc99af45603c3d9fd8b">IO_I2C_SDA_DIR_I</a>(); <span class="comment">/* 切换 SDA 为输入状态 */</span></div>
<div class="line"><a id="l00196" name="l00196"></a><span class="lineno">  196</span> </div>
<div class="line"><a id="l00197" name="l00197"></a><span class="lineno">  197</span>    <span class="keywordflow">if</span> (<a class="code hl_define" href="dev__io_8h.html#ab0ead146e3adc7e8710afee28f736c95">IO_GET</a>(<a class="code hl_define" href="dev__touch_8h.html#a2430e500da89d3deb28fe4ba6d85cbeb">TP_GPIO_SDA</a>, <a class="code hl_define" href="dev__touch_8h.html#aef519ccca134ad2b0416daacf1fe0696">TP_PIN_SDA</a>)) <span class="comment">/* 检测 I2C 总线的 IIC_SDA 是否为高电平 */</span></div>
<div class="line"><a id="l00198" name="l00198"></a><span class="lineno">  198</span>    {</div>
<div class="line"><a id="l00199" name="l00199"></a><span class="lineno">  199</span>        <a class="code hl_define" href="dev__io__i2c_8c.html#aeccdf57dce6943953940758638ef7355">IO_I2C_SDA_DIR_O</a>(); <span class="comment">/* 检测为高电平表明 I2C 总线是空闲的, 则设置 IIC_SDA 为输出状态 */</span></div>
<div class="line"><a id="l00200" name="l00200"></a><span class="lineno">  200</span> </div>
<div class="line"><a id="l00201" name="l00201"></a><span class="lineno">  201</span>        <span class="comment">/* 启动 I2C 总线的起始时序 */</span></div>
<div class="line"><a id="l00202" name="l00202"></a><span class="lineno">  202</span>        <a class="code hl_define" href="dev__io__i2c_8c.html#a4aebdb53d1294c3008175592f73fc586">IO_I2C_SDA_H</a>();</div>
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno">  203</span>        </div>
<div class="line"><a id="l00204" name="l00204"></a><span class="lineno">  204</span>        <a class="code hl_define" href="dev__io__i2c_8c.html#a48fb4a6a453531b45b0fe78f0649e2d3">IO_I2C_SCL_H</a>();</div>
<div class="line"><a id="l00205" name="l00205"></a><span class="lineno">  205</span>        <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00206" name="l00206"></a><span class="lineno">  206</span> </div>
<div class="line"><a id="l00207" name="l00207"></a><span class="lineno">  207</span>        <a class="code hl_define" href="dev__io__i2c_8c.html#a47b137463bffebf7af6bd74278d8f8c3">IO_I2C_SDA_L</a>();</div>
<div class="line"><a id="l00208" name="l00208"></a><span class="lineno">  208</span>        <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00209" name="l00209"></a><span class="lineno">  209</span>        </div>
<div class="line"><a id="l00210" name="l00210"></a><span class="lineno">  210</span>        <a class="code hl_define" href="dev__io__i2c_8c.html#a89365b46eef744394b5047c523748664">IO_I2C_SCL_L</a>(); <span class="comment">/* 获取总线控制权 */</span></div>
<div class="line"><a id="l00211" name="l00211"></a><span class="lineno">  211</span>        <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00212" name="l00212"></a><span class="lineno">  212</span>        <span class="keywordflow">return</span> 1;</div>
<div class="line"><a id="l00213" name="l00213"></a><span class="lineno">  213</span>    }</div>
<div class="line"><a id="l00214" name="l00214"></a><span class="lineno">  214</span>    <span class="keywordflow">return</span> 0;</div>
<div class="line"><a id="l00215" name="l00215"></a><span class="lineno">  215</span>}</div>
<div class="line"><a id="l00216" name="l00216"></a><span class="lineno">  216</span> </div>
<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a2f2fd2dc0cabe8d5843a078348d9920f">  220</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="dev__io__i2c_8c.html#a2f2fd2dc0cabe8d5843a078348d9920f">io_i2c_stop_signal</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a id="l00221" name="l00221"></a><span class="lineno">  221</span>{</div>
<div class="line"><a id="l00222" name="l00222"></a><span class="lineno">  222</span>    <span class="comment">/* 钳住总线发送停止信号 */</span></div>
<div class="line"><a id="l00223" name="l00223"></a><span class="lineno">  223</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#aeccdf57dce6943953940758638ef7355">IO_I2C_SDA_DIR_O</a>();</div>
<div class="line"><a id="l00224" name="l00224"></a><span class="lineno">  224</span>    </div>
<div class="line"><a id="l00225" name="l00225"></a><span class="lineno">  225</span><span class="comment">//    IO_I2C_SCL_L();</span></div>
<div class="line"><a id="l00226" name="l00226"></a><span class="lineno">  226</span><span class="comment">//    io_i2c_delay();</span></div>
<div class="line"><a id="l00227" name="l00227"></a><span class="lineno">  227</span> </div>
<div class="line"><a id="l00228" name="l00228"></a><span class="lineno">  228</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#a47b137463bffebf7af6bd74278d8f8c3">IO_I2C_SDA_L</a>();</div>
<div class="line"><a id="l00229" name="l00229"></a><span class="lineno">  229</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00230" name="l00230"></a><span class="lineno">  230</span>    </div>
<div class="line"><a id="l00231" name="l00231"></a><span class="lineno">  231</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#a48fb4a6a453531b45b0fe78f0649e2d3">IO_I2C_SCL_H</a>();</div>
<div class="line"><a id="l00232" name="l00232"></a><span class="lineno">  232</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00233" name="l00233"></a><span class="lineno">  233</span>    </div>
<div class="line"><a id="l00234" name="l00234"></a><span class="lineno">  234</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#a4aebdb53d1294c3008175592f73fc586">IO_I2C_SDA_H</a>();</div>
<div class="line"><a id="l00235" name="l00235"></a><span class="lineno">  235</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00236" name="l00236"></a><span class="lineno">  236</span>}</div>
<div class="line"><a id="l00237" name="l00237"></a><span class="lineno">  237</span> </div>
<div class="line"><a id="l00244" name="l00244"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a507c871d4232488d9f36c335cea78bad">  244</a></span><span class="keyword">static</span> uint8_t <a class="code hl_function" href="dev__io__i2c_8c.html#a507c871d4232488d9f36c335cea78bad">io_i2c_wait_ack</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a id="l00245" name="l00245"></a><span class="lineno">  245</span>{</div>
<div class="line"><a id="l00246" name="l00246"></a><span class="lineno">  246</span>    uint8_t ack = 0;</div>
<div class="line"><a id="l00247" name="l00247"></a><span class="lineno">  247</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#abdf5284b11e20fc99af45603c3d9fd8b">IO_I2C_SDA_DIR_I</a>();</div>
<div class="line"><a id="l00248" name="l00248"></a><span class="lineno">  248</span>    <span class="keywordflow">for</span> (uint8_t i = 0; i &lt; <a class="code hl_define" href="dev__io__i2c_8c.html#a01c3892c16d6330e486637967ab0289b">MAX_RETRY</a>; ++i)</div>
<div class="line"><a id="l00249" name="l00249"></a><span class="lineno">  249</span>    {</div>
<div class="line"><a id="l00250" name="l00250"></a><span class="lineno">  250</span>        ack = <a class="code hl_define" href="dev__io_8h.html#ab0ead146e3adc7e8710afee28f736c95">IO_GET</a>(<a class="code hl_define" href="dev__touch_8h.html#a2430e500da89d3deb28fe4ba6d85cbeb">TP_GPIO_SDA</a>, <a class="code hl_define" href="dev__touch_8h.html#aef519ccca134ad2b0416daacf1fe0696">TP_PIN_SDA</a>);</div>
<div class="line"><a id="l00251" name="l00251"></a><span class="lineno">  251</span>        <span class="keywordflow">if</span> (ack == 0)</div>
<div class="line"><a id="l00252" name="l00252"></a><span class="lineno">  252</span>            <span class="keywordflow">break</span>;    </div>
<div class="line"><a id="l00253" name="l00253"></a><span class="lineno">  253</span>    }</div>
<div class="line"><a id="l00254" name="l00254"></a><span class="lineno">  254</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#a48fb4a6a453531b45b0fe78f0649e2d3">IO_I2C_SCL_H</a>();</div>
<div class="line"><a id="l00255" name="l00255"></a><span class="lineno">  255</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00256" name="l00256"></a><span class="lineno">  256</span>    </div>
<div class="line"><a id="l00257" name="l00257"></a><span class="lineno">  257</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#a89365b46eef744394b5047c523748664">IO_I2C_SCL_L</a>();</div>
<div class="line"><a id="l00258" name="l00258"></a><span class="lineno">  258</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00259" name="l00259"></a><span class="lineno">  259</span>    </div>
<div class="line"><a id="l00260" name="l00260"></a><span class="lineno">  260</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#aeccdf57dce6943953940758638ef7355">IO_I2C_SDA_DIR_O</a>();</div>
<div class="line"><a id="l00261" name="l00261"></a><span class="lineno">  261</span>    <span class="keywordflow">return</span> (ack == 0) ? 1 : 0;</div>
<div class="line"><a id="l00262" name="l00262"></a><span class="lineno">  262</span>}</div>
<div class="line"><a id="l00263" name="l00263"></a><span class="lineno">  263</span> </div>
<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a95625ec003f9bd0e827493aa2465f483">  270</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="dev__io__i2c_8c.html#a95625ec003f9bd0e827493aa2465f483">io_i2c_send_ack</a>(uint8_t ack)</div>
<div class="line"><a id="l00271" name="l00271"></a><span class="lineno">  271</span>{</div>
<div class="line"><a id="l00272" name="l00272"></a><span class="lineno">  272</span>    <span class="keywordflow">if</span> (ack)</div>
<div class="line"><a id="l00273" name="l00273"></a><span class="lineno">  273</span>    {</div>
<div class="line"><a id="l00274" name="l00274"></a><span class="lineno">  274</span>        <a class="code hl_define" href="dev__io__i2c_8c.html#a47b137463bffebf7af6bd74278d8f8c3">IO_I2C_SDA_L</a>();</div>
<div class="line"><a id="l00275" name="l00275"></a><span class="lineno">  275</span>    }</div>
<div class="line"><a id="l00276" name="l00276"></a><span class="lineno">  276</span>    <span class="keywordflow">else</span></div>
<div class="line"><a id="l00277" name="l00277"></a><span class="lineno">  277</span>    {</div>
<div class="line"><a id="l00278" name="l00278"></a><span class="lineno">  278</span>        <a class="code hl_define" href="dev__io__i2c_8c.html#a4aebdb53d1294c3008175592f73fc586">IO_I2C_SDA_H</a>();</div>
<div class="line"><a id="l00279" name="l00279"></a><span class="lineno">  279</span>    }</div>
<div class="line"><a id="l00280" name="l00280"></a><span class="lineno">  280</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00281" name="l00281"></a><span class="lineno">  281</span>    </div>
<div class="line"><a id="l00282" name="l00282"></a><span class="lineno">  282</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#a48fb4a6a453531b45b0fe78f0649e2d3">IO_I2C_SCL_H</a>();</div>
<div class="line"><a id="l00283" name="l00283"></a><span class="lineno">  283</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00284" name="l00284"></a><span class="lineno">  284</span>    </div>
<div class="line"><a id="l00285" name="l00285"></a><span class="lineno">  285</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#a89365b46eef744394b5047c523748664">IO_I2C_SCL_L</a>();</div>
<div class="line"><a id="l00286" name="l00286"></a><span class="lineno">  286</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00287" name="l00287"></a><span class="lineno">  287</span>}</div>
<div class="line"><a id="l00288" name="l00288"></a><span class="lineno">  288</span> </div>
<div class="line"><a id="l00294" name="l00294"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#ab7222883cb247799343ee48f43c677af">  294</a></span><span class="keyword">static</span> uint8_t <a class="code hl_function" href="dev__io__i2c_8c.html#ab7222883cb247799343ee48f43c677af">io_i2c_recv_byte</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a id="l00295" name="l00295"></a><span class="lineno">  295</span>{</div>
<div class="line"><a id="l00296" name="l00296"></a><span class="lineno">  296</span>    uint8_t data = 0;</div>
<div class="line"><a id="l00297" name="l00297"></a><span class="lineno">  297</span> </div>
<div class="line"><a id="l00298" name="l00298"></a><span class="lineno">  298</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#abdf5284b11e20fc99af45603c3d9fd8b">IO_I2C_SDA_DIR_I</a>();</div>
<div class="line"><a id="l00299" name="l00299"></a><span class="lineno">  299</span>    </div>
<div class="line"><a id="l00300" name="l00300"></a><span class="lineno">  300</span>    <span class="keywordflow">for</span> (uint8_t i = 0; i &lt; 8; ++i)</div>
<div class="line"><a id="l00301" name="l00301"></a><span class="lineno">  301</span>    {</div>
<div class="line"><a id="l00302" name="l00302"></a><span class="lineno">  302</span>        data &lt;&lt;= 1;</div>
<div class="line"><a id="l00303" name="l00303"></a><span class="lineno">  303</span> </div>
<div class="line"><a id="l00304" name="l00304"></a><span class="lineno">  304</span>        <a class="code hl_define" href="dev__io__i2c_8c.html#a48fb4a6a453531b45b0fe78f0649e2d3">IO_I2C_SCL_H</a>();</div>
<div class="line"><a id="l00305" name="l00305"></a><span class="lineno">  305</span>        <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00306" name="l00306"></a><span class="lineno">  306</span> </div>
<div class="line"><a id="l00307" name="l00307"></a><span class="lineno">  307</span>        <span class="keywordflow">if</span> (<a class="code hl_define" href="dev__io_8h.html#ab0ead146e3adc7e8710afee28f736c95">IO_GET</a>(<a class="code hl_define" href="dev__touch_8h.html#a2430e500da89d3deb28fe4ba6d85cbeb">TP_GPIO_SDA</a>, <a class="code hl_define" href="dev__touch_8h.html#aef519ccca134ad2b0416daacf1fe0696">TP_PIN_SDA</a>)) <span class="comment">/* MSB */</span></div>
<div class="line"><a id="l00308" name="l00308"></a><span class="lineno">  308</span>            ++data;<span class="comment">//data |= (1 &lt;&lt; (7 - i));</span></div>
<div class="line"><a id="l00309" name="l00309"></a><span class="lineno">  309</span> </div>
<div class="line"><a id="l00310" name="l00310"></a><span class="lineno">  310</span>        <a class="code hl_define" href="dev__io__i2c_8c.html#a89365b46eef744394b5047c523748664">IO_I2C_SCL_L</a>();</div>
<div class="line"><a id="l00311" name="l00311"></a><span class="lineno">  311</span>        <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00312" name="l00312"></a><span class="lineno">  312</span>    }</div>
<div class="line"><a id="l00313" name="l00313"></a><span class="lineno">  313</span> </div>
<div class="line"><a id="l00314" name="l00314"></a><span class="lineno">  314</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#aeccdf57dce6943953940758638ef7355">IO_I2C_SDA_DIR_O</a>();</div>
<div class="line"><a id="l00315" name="l00315"></a><span class="lineno">  315</span>    <span class="keywordflow">return</span> data;</div>
<div class="line"><a id="l00316" name="l00316"></a><span class="lineno">  316</span>}</div>
<div class="line"><a id="l00317" name="l00317"></a><span class="lineno">  317</span> </div>
<div class="line"><a id="l00323" name="l00323"></a><span class="lineno"><a class="line" href="dev__io__i2c_8c.html#a268a94eb25b4c8a9d88a83259930b2df">  323</a></span><span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code hl_function" href="dev__io__i2c_8c.html#a268a94eb25b4c8a9d88a83259930b2df">io_i2c_send_byte</a>(uint8_t data)</div>
<div class="line"><a id="l00324" name="l00324"></a><span class="lineno">  324</span>{</div>
<div class="line"><a id="l00325" name="l00325"></a><span class="lineno">  325</span>    <span class="keywordflow">for</span> (uint8_t i = 0; i &lt; 8; ++i)</div>
<div class="line"><a id="l00326" name="l00326"></a><span class="lineno">  326</span>    {</div>
<div class="line"><a id="l00327" name="l00327"></a><span class="lineno">  327</span>        <a class="code hl_define" href="dev__io__i2c_8c.html#a89365b46eef744394b5047c523748664">IO_I2C_SCL_L</a>();</div>
<div class="line"><a id="l00328" name="l00328"></a><span class="lineno">  328</span>        <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00329" name="l00329"></a><span class="lineno">  329</span>        </div>
<div class="line"><a id="l00330" name="l00330"></a><span class="lineno">  330</span>        <span class="keywordflow">if</span> ( (data &amp; 0x80) ) <span class="comment">/* MSB */</span></div>
<div class="line"><a id="l00331" name="l00331"></a><span class="lineno">  331</span>            <a class="code hl_define" href="dev__io__i2c_8c.html#a4aebdb53d1294c3008175592f73fc586">IO_I2C_SDA_H</a>();</div>
<div class="line"><a id="l00332" name="l00332"></a><span class="lineno">  332</span>        <span class="keywordflow">else</span></div>
<div class="line"><a id="l00333" name="l00333"></a><span class="lineno">  333</span>            <a class="code hl_define" href="dev__io__i2c_8c.html#a47b137463bffebf7af6bd74278d8f8c3">IO_I2C_SDA_L</a>();</div>
<div class="line"><a id="l00334" name="l00334"></a><span class="lineno">  334</span>        </div>
<div class="line"><a id="l00335" name="l00335"></a><span class="lineno">  335</span>        <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00336" name="l00336"></a><span class="lineno">  336</span>        </div>
<div class="line"><a id="l00337" name="l00337"></a><span class="lineno">  337</span>        <a class="code hl_define" href="dev__io__i2c_8c.html#a48fb4a6a453531b45b0fe78f0649e2d3">IO_I2C_SCL_H</a>();</div>
<div class="line"><a id="l00338" name="l00338"></a><span class="lineno">  338</span>        <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00339" name="l00339"></a><span class="lineno">  339</span> </div>
<div class="line"><a id="l00340" name="l00340"></a><span class="lineno">  340</span>        data &lt;&lt;= 1;</div>
<div class="line"><a id="l00341" name="l00341"></a><span class="lineno">  341</span>    }</div>
<div class="line"><a id="l00342" name="l00342"></a><span class="lineno">  342</span>    <a class="code hl_define" href="dev__io__i2c_8c.html#a89365b46eef744394b5047c523748664">IO_I2C_SCL_L</a>();</div>
<div class="line"><a id="l00343" name="l00343"></a><span class="lineno">  343</span>    <a class="code hl_function" href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a>();</div>
<div class="line"><a id="l00344" name="l00344"></a><span class="lineno">  344</span>}</div>
<div class="ttc" id="adev__io_8h_html"><div class="ttname"><a href="dev__io_8h.html">dev_io.h</a></div><div class="ttdoc">IO 模拟外设功能底层操作宏, 用于对接[外设驱动层], [用户层]应使用[驱动层]的接口, 不宜直接使用本模块</div></div>
<div class="ttc" id="adev__io_8h_html_ab0ead146e3adc7e8710afee28f736c95"><div class="ttname"><a href="dev__io_8h.html#ab0ead146e3adc7e8710afee28f736c95">IO_GET</a></div><div class="ttdeci">#define IO_GET(GPIOx, PINx)</div><div class="ttdoc">获取 IO 输入(须保证对应 IO 为 GPIO 输入状态, 否则操作无效)</div><div class="ttdef"><b>Definition:</b> <a href="dev__io_8h_source.html#l00034">dev_io.h:34</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_a01c3892c16d6330e486637967ab0289b"><div class="ttname"><a href="dev__io__i2c_8c.html#a01c3892c16d6330e486637967ab0289b">MAX_RETRY</a></div><div class="ttdeci">#define MAX_RETRY</div><div class="ttdoc">错误重试次数上限</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00065">dev_io_i2c.c:65</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_a18a19719c37d180525d3ad812408c62a"><div class="ttname"><a href="dev__io__i2c_8c.html#a18a19719c37d180525d3ad812408c62a">io_i2c_read</a></div><div class="ttdeci">uint8_t io_i2c_read(uint8_t ack, uint8_t wait)</div><div class="ttdoc">IO 模拟标准 I2C, 主设备读取一个数据</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00153">dev_io_i2c.c:153</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_a268a94eb25b4c8a9d88a83259930b2df"><div class="ttname"><a href="dev__io__i2c_8c.html#a268a94eb25b4c8a9d88a83259930b2df">io_i2c_send_byte</a></div><div class="ttdeci">static void io_i2c_send_byte(uint8_t data)</div><div class="ttdoc">I2C 主设备传输 8 位数据</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00323">dev_io_i2c.c:323</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_a2f2fd2dc0cabe8d5843a078348d9920f"><div class="ttname"><a href="dev__io__i2c_8c.html#a2f2fd2dc0cabe8d5843a078348d9920f">io_i2c_stop_signal</a></div><div class="ttdeci">static void io_i2c_stop_signal(void)</div><div class="ttdoc">IIC 主设备产生停止信号</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00220">dev_io_i2c.c:220</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_a47b137463bffebf7af6bd74278d8f8c3"><div class="ttname"><a href="dev__io__i2c_8c.html#a47b137463bffebf7af6bd74278d8f8c3">IO_I2C_SDA_L</a></div><div class="ttdeci">#define IO_I2C_SDA_L()</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00055">dev_io_i2c.c:55</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_a48fb4a6a453531b45b0fe78f0649e2d3"><div class="ttname"><a href="dev__io__i2c_8c.html#a48fb4a6a453531b45b0fe78f0649e2d3">IO_I2C_SCL_H</a></div><div class="ttdeci">#define IO_I2C_SCL_H()</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00059">dev_io_i2c.c:59</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_a4aebdb53d1294c3008175592f73fc586"><div class="ttname"><a href="dev__io__i2c_8c.html#a4aebdb53d1294c3008175592f73fc586">IO_I2C_SDA_H</a></div><div class="ttdeci">#define IO_I2C_SDA_H()</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00056">dev_io_i2c.c:56</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_a4d0792f91f99fe78d977675f315b8b99"><div class="ttname"><a href="dev__io__i2c_8c.html#a4d0792f91f99fe78d977675f315b8b99">io_i2c_write</a></div><div class="ttdeci">uint8_t io_i2c_write(uint8_t data, uint8_t wait)</div><div class="ttdoc">IO 模拟标准 I2C, 主设备写入一个数据</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00168">dev_io_i2c.c:168</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_a507c871d4232488d9f36c335cea78bad"><div class="ttname"><a href="dev__io__i2c_8c.html#a507c871d4232488d9f36c335cea78bad">io_i2c_wait_ack</a></div><div class="ttdeci">static uint8_t io_i2c_wait_ack(void)</div><div class="ttdoc">I2C 主设备接收应答信号</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00244">dev_io_i2c.c:244</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_a89365b46eef744394b5047c523748664"><div class="ttname"><a href="dev__io__i2c_8c.html#a89365b46eef744394b5047c523748664">IO_I2C_SCL_L</a></div><div class="ttdeci">#define IO_I2C_SCL_L()</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00058">dev_io_i2c.c:58</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_a95625ec003f9bd0e827493aa2465f483"><div class="ttname"><a href="dev__io__i2c_8c.html#a95625ec003f9bd0e827493aa2465f483">io_i2c_send_ack</a></div><div class="ttdeci">static void io_i2c_send_ack(uint8_t ack)</div><div class="ttdoc">I2C 主设备发送应答信号</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00270">dev_io_i2c.c:270</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_ab7222883cb247799343ee48f43c677af"><div class="ttname"><a href="dev__io__i2c_8c.html#ab7222883cb247799343ee48f43c677af">io_i2c_recv_byte</a></div><div class="ttdeci">static uint8_t io_i2c_recv_byte(void)</div><div class="ttdoc">I2C 主设备接收 8bit 数据</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00294">dev_io_i2c.c:294</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_ab80cac38a78cf222153cd721d4801a3a"><div class="ttname"><a href="dev__io__i2c_8c.html#ab80cac38a78cf222153cd721d4801a3a">io_i2c_delay</a></div><div class="ttdeci">static void io_i2c_delay(void)</div><div class="ttdoc">IIC 通讯的延时保持</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00117">dev_io_i2c.c:117</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_abb9c2429dbe2c1095dc3ec66a0b79a11"><div class="ttname"><a href="dev__io__i2c_8c.html#abb9c2429dbe2c1095dc3ec66a0b79a11">io_i2c_start_signal</a></div><div class="ttdeci">static uint8_t io_i2c_start_signal(void)</div><div class="ttdoc">I2C 总线启动前仲裁, 若总线(高电平)空闲则发起总线起始时序</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00193">dev_io_i2c.c:193</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_abdf5284b11e20fc99af45603c3d9fd8b"><div class="ttname"><a href="dev__io__i2c_8c.html#abdf5284b11e20fc99af45603c3d9fd8b">IO_I2C_SDA_DIR_I</a></div><div class="ttdeci">#define IO_I2C_SDA_DIR_I()</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00061">dev_io_i2c.c:61</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_addb2a5d40257d803646950da9167bccb"><div class="ttname"><a href="dev__io__i2c_8c.html#addb2a5d40257d803646950da9167bccb">io_i2c_stop</a></div><div class="ttdeci">void io_i2c_stop(uint8_t wait)</div><div class="ttdoc">IO 模拟标准 I2C, 主设备产生停止信号</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00179">dev_io_i2c.c:179</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_aeccdf57dce6943953940758638ef7355"><div class="ttname"><a href="dev__io__i2c_8c.html#aeccdf57dce6943953940758638ef7355">IO_I2C_SDA_DIR_O</a></div><div class="ttdeci">#define IO_I2C_SDA_DIR_O()</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00062">dev_io_i2c.c:62</a></div></div>
<div class="ttc" id="adev__io__i2c_8c_html_af312bd95bfab5d6c323eb36deea573cf"><div class="ttname"><a href="dev__io__i2c_8c.html#af312bd95bfab5d6c323eb36deea573cf">io_i2c_start</a></div><div class="ttdeci">uint8_t io_i2c_start(uint8_t addr, uint8_t wait)</div><div class="ttdoc">IO 模拟标准 I2C, 主设备产生起始信号并发送设备地址</div><div class="ttdef"><b>Definition:</b> <a href="dev__io__i2c_8c_source.html#l00132">dev_io_i2c.c:132</a></div></div>
<div class="ttc" id="adev__io__i2c_8h_html"><div class="ttname"><a href="dev__io__i2c_8h.html">dev_io_i2c.h</a></div><div class="ttdoc">IO 模拟 IIC 通讯接口</div></div>
<div class="ttc" id="adev__touch_8h_html"><div class="ttname"><a href="dev__touch_8h.html">dev_touch.h</a></div><div class="ttdoc">TP 触摸设备驱动层</div></div>
<div class="ttc" id="adev__touch_8h_html_a2430e500da89d3deb28fe4ba6d85cbeb"><div class="ttname"><a href="dev__touch_8h.html#a2430e500da89d3deb28fe4ba6d85cbeb">TP_GPIO_SDA</a></div><div class="ttdeci">#define TP_GPIO_SDA</div><div class="ttdef"><b>Definition:</b> <a href="dev__touch_8h_source.html#l00043">dev_touch.h:43</a></div></div>
<div class="ttc" id="adev__touch_8h_html_aef519ccca134ad2b0416daacf1fe0696"><div class="ttname"><a href="dev__touch_8h.html#aef519ccca134ad2b0416daacf1fe0696">TP_PIN_SDA</a></div><div class="ttdeci">#define TP_PIN_SDA</div><div class="ttdef"><b>Definition:</b> <a href="dev__touch_8h_source.html#l00044">dev_touch.h:44</a></div></div>
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